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Linux Journal

Linux Kernel Developers Adopt New Fuzzing Tools

by George Whittaker The Linux kernel development community is stepping up its security game once again. Developers, led by key maintainers like Greg Kroah-Hartman, are actively adopting new fuzzing tools to uncover bugs earlier and improve overall kernel reliability. This move reflects a broader shift toward automated testing and AI-assisted development, as the kernel continues to grow in complexity and scale. What Is Fuzzing and Why It Matters Fuzzing is a software testing technique that feeds random or unexpected inputs into a program to trigger crashes or uncover vulnerabilities. In the Linux kernel, fuzzing has become one of the most effective ways to detect: Memory corruption bugs Race conditions Privilege escalation flaws Edge-case failures in subsystems Modern fuzzers like Syzkaller have already discovered thousands of kernel bugs over the years, making them a cornerstone of Linux security testing. New Tools Enter the Scene Recently, kernel maintainers have begun experimenting w

LWN.net

[$] A flood of useful security reports

The idea of using large language models (LLMs) to discover security problems is not new. Google's Project Zero investigated the feasibility of using LLMs for security research in 2024. At the time, they found that models could identify real problems, but required a good deal of structure and hand-holding to do so on small benchmark problems. In February 2026, Anthropic published a report claiming that the company's most recent LLM at that point in time, Claude Opus 4.6, had discovered real-world vulnerabilities in critical open-source software, including the Linux kernel, with far less scaffolding. On April 7, Anthropic announced a new experimental model that is supposedly even better; which they have partnered with the Linux Foundation to supply to some open-source developers with access to the tool for security reviews. LLMs seem to have progressed significantly in the last few months, a change which is being noticed in the open-source community.

LWN.net

Relicensing versus license compatibility (FSF Blog)

The Free Software Foundation has published a short article on relicensing versus license compatibility. The FSF's Licensing and Compliance Lab receives many questions and license violation reports related to projects that had their license changed by a downstream distributor, or that are combined from two or more programs under different licenses. We collaborated with Yoni Rabkin, an experienced and long time FSF licensing volunteer, on an updated version of his article to provide the free software community with a general explanation on how the GNU General Public License (GNU GPL) is intended to work in such situations.

LWN.net

Security updates for Thursday

Security updates have been issued by Debian (firefox-esr, postgresql-13, and tiff), Fedora (bind, bind-dyndb-ldap, cef, opensc, python-biopython, python-pydicom, and roundcubemail), Slackware (mozilla), SUSE (ckermit, cockpit-repos, dnsdist, expat, freerdp, git-cliff, gnutls, heroic-games-launcher, libeverest, openssl-1_1, openssl-3, polkit, python-poetry, python-requests, python311-social-auth-app-django, and SDL2_image-devel), and Ubuntu (dogtag-pki, gdk-pixbuf, linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-igx, linux-oracle, linux-oracle-5.15, linux-raspi, linux-xilinx-zynqmp, linux-aws-6.8, linux-gcp-6.8, linux-hwe-6.8, linux-ibm-6.8, linux-lowlatency-hwe-6.8, linux-fips, linux-aws-fips, linux-gcp-fips, linux-oracle, linux-oracle-6.17, linux-raspi, linux-realtime, opens

Phoronix

ASUS Armoury Driver Supports A Few More Laptops With Linux 7.0

Merged back in Linux 6.19 was the ASUS Armoury driver to enhance support for the ROG Ally gaming handhelds and modern ASUS laptops. The ASUS Armoury driver enables various laptop features to be toggled under Linux and since its introduction it has continued expanding support for more ASUS devices. Ahead of Linux 7.0 coming out on Sunday, a few more devices are now supported by this upstream driver...

Phoronix

Valve Developer Improves The Linux Gaming Experience For Limited vRAM Hardware

Natalie Vock of Valve's Linux graphics driver team primarily working on the RADV Vulkan driver has come up with a new interesting creation: patches to the Linux kernel and KDE for sharply improving the gaming experience for those running systems with limited amounts of video memory. Such as for graphics cards with just 8GB of dedicated vRAM, the patches now available -- initially on CachyOS for a nice out-of-the-box experience -- provide a noticeably better Linux gaming experience...